Heater.



No- 806,856. I PATENTED DEG. 12, 1905.

' S. D. WATSON.

HEATER.

APPLICATION FILED FBB.18,1905.

2 SHEETS-SHBET 2.

A rT'v.

UNITED STATES PATENT orinon.

Specification of Letters Patent.

Patented Dec. 12, 1905.

A plication filed February 18, 1905. Serial No. 246,330.

To all whmn it may concern:

Be it known that I, SEYMOUR D. WATSON, a citizen of the United States, residing at St. Johns, in the county of Clinton and State of Michigan, have invented certain new and useful Improvements in Heaters,of which the following is a specification, reference being had therein to the accompanying drawings.

The invention relates particularly to a heater adapted for use either in steam or hotwater systems; and it consists in the novel and simple construction of a heater of this type whereby it may be readily operated and an increased amount of heating-surface obtained.

The invention further consists in the peculiar arrangement and combination of the various parts of the heater and in certain details of construction, as will be hereinafter fully set forth, and pointed out in the claims.

In the drawings illustrating my invention, Figure 1 is a sectional view of the heater, partly in elevation. Fig. 2 is a cross-section through the heater. Fig. 3 is a plan view of the fire-pot, and Fig. 4 is a front elevation.

In the drawings thus briefly described the reference-letter A represents the casing, preferably formed of brick in this instance, having a metal front B, in which are the usual fuel-doors, cleaning-openings, &c., and a back section C, formed of plates containing suitable doors for access to the interior of the heater, the back metal wall, as shown in Fig. 1, extending, preferably, halfway of the heater. Within the inclosing wall described is arranged a fire-pot D, oblong in configuration, as indicated in Fig.3, the ends thereof being spaced each at some distance from the front and rear walls of the casing for a purpose hereinafter set forth.

E represents lips orflanges extending from the opposite sides of the fire-pot and centrally thereof at its top, which project within the brickwork and serve to support the pot in the position indicated in Fig. l at a sufiicient dis tance above the floor to form a suitable ashpit section F, provided with ordinary draftdoor G and inlet H.

I I represent closures in the form of plates covering the space between the fire-pot ends and the ends of the casing. These plates, as shown, are fitted about the fire-pot beneath the rim-flange 1 thereon and act to cut off upward draft between the fire-pot ends and the casing, compelling the passage of the draft through the body of the fuel. In some instances the plates are combined with extensions I, which are used to out off upward passage of the draft between the sides of the firepot and the casing-walls when there is a space left therebetween. As shown in Fig. 3, the plate I has its outer edge supported upon lugs a, formed upon the inner face of the metal front of the heater, while its side edges extend within the brickwork. The complementary plate I is preferably entirely supported by the brickwork, as shown.

The fire-pot described is provided with a water-jacket, made, preferably, by forming an annular unobstructed water-chamber G Within its inclosing wall, the chamber being provided with the openings K and L at the center and upon opposite sides of the pot, as shown. Supported upon the pot is avertical water-wall M, arched at its center, forming two spaced water-legs O and P. These rest upon opposite sides of the fire-pot and have openings registering with the openings K and L, so that a water circulation will be maintained through the fire-pot and water-wall, the jacketed fire-pot giving additional heating-surface and the water-chamber serving to protect the pot from the heat.

Q represents a plurality of water-tubes ex tending, preferably, from opposite sides of the vertical water-wall and the legs thereof, which are closed at their outer ends and have communication at their inner ends with the wall. These tubes, as shown, by extending down to the fire-pot in the manner indicated in Fig. 2 form a fuel-chamber above the pot, acting as the fire-wall, and are heated to a maximum extent by the burning fuel. indicated in Fig. 1, project beyond the ends of the fire-pot a considerable distance and in proximity to the casing ends. This construction prevents the heat and products of combustion arising from the fire-pot from passing around the ends of the tubes and subsequently out through the stack and compels their discharge through the tubes, whereby the desired heat effect is obtained.

Above the water-wall described and supported thereon is a drum R, provided centrally of its lower face with an opening S, registering with a corresponding opening T, formed within the top of the water-wall, as shown in Fig. 2. An annular laterally-projecting flange, as U, extends about each of They also, as

the openings, and these flanges are connected and the parts held rigidly together by means of suitable bolts V. Preferably a gasket W is interposed between the flanges, making a tight joint, preventing the escape of water.

X and Y designate the conveyerpipes leading from the drum to the rooms that are to be heated, and Z designates the usual returnpipe entering the water-jacketed fire-pot below one of the legs of the water-wall.-

A represents the stack for the exit of products of combustion, and B is a suitable gage of any desired type having connections with the water-wall and drum, as shown.

As thus described it will be obvious that a circulation is maintained during the operation of the heater through the drum, the water-.

wall, the tubes, and the fire-pot, a maximum amount of heating-surface being thus secured and the various portions of the heater exposed to the fire being protected by the waterchambers.

To assist in operating the heater, I have provided a magazine leading from the exterior of the casing at preferably one side thereof to the fire-pot, as indicated in Fig. 2. This magazine may be formed in any manner; but

I have preferably shown it as extending through the heater-casing and through the water-wall to the fire-pot, the wall being enlarged on each side, as at C, for this purpose and a diagonal opening D being formed within the enlarged part for the passage of the fuel. The magazine proper, E, has its lower end shaped to engage and extend slightly within the diagonal opening in the wall, while its upper end F flares and is built in the brickwork, as shown. The section E is preferably aseparate piece from the rest of the magazine and is held in place by lugs c and d and a suitable bolt 0. f represents a cover of any approved type, which I preferably arrange within the magazine at adistance from the mouth, as indicated. By the use of the magazine described it is possible when the heater is used in dwellings to charge the fire-pot and entire magazine with fuel, which will be suflicient to run the heater a considerable period of time.

To prevent to a great extent the formation of smoke, I have provided a door-controlled draft-opening G leading from the exterior of the casing at a point below the magazineinlet to and within the magazine at a distance above its discharge end. The door of the draft-opening being raised, air is enabled to pass within the fire-pot through 'the coked fuel within the magazine and mingling with the gases in the pot cause their combustion and the prevention of smoke.

Having thus described my invention, what I claim as my invention, and desire to secure by Letters Patent, is

1. In a heater, the combination with an inclosing casing, of a water-wall therein provided with a plurality of communicating water-tubes, a fire-pot beneath said wall, and a water-jacket about the fire-pot having communication with the interior of the wall.

2. In a heater, the combination with a vertical water-wall, of water-tubes communicating with and projecting from opposite sides of the wall, a communicating drum above and supported upon said wall, a fire-pot support ing the wall, and a water-jacket about the firepot having communication with the wall and drum.

3, In a heater, the combination with a firepot having an annular unobstructed waterchamber formed in its inclosing wall, of an arched water-wall provided with water-legs supported upon the fire-pot, and communicating with the water-chamber therein, a plurality of water-tubes having communication with and projecting from the opposite sides of the water wall and legs forming a fire-chamber above the pot, and a steam-drum, supported upon the water-wall, communicating with the latter, the tubes and the fire-pot.

4. In a heater, the combination, with an in closing casing, of a fire-pot within and spaced from the casing, a water-wall provided with water-tubes projecting beyond the fire-pot into proximity to the casing, and a closure covering the space between the fire pot and easing.

5. In a heater, the combination with an inclosing casing, of a fire-pot within and spaced from the casing ends, a vertical water-wall provided with a plurality of communicating water-tubes projecting horizontally from opposite sides of the wall beyond the fire-pot into proximity to the casing ends, an ash-pit section beneath the fire-pot having a draftinlet, and draft-cut-oif plates supported in the casing and covering the openings between the casing ends and the adjoining ends of the firepot.

6. In a heater, the combination with an arched water-wall, of a plurality of communicating water-tubes projecting therefrom, a fire-pot beneath the wall, a casing inclosing the wall, fire-pot and water-tubes, and a magazine extending through one of the legs of the water-wall and adapted to discharge within the fire-pot.

7. In a heater, the combination with a waand an annular horizontally-projecting flange the latter at their inner ends, and a casing in-. surrounding the opening, a drum upon the closingthedrumthe water-wall and the tubes. IO wall communicating with the latter through In testimony whereof I affix my signature in the opening and carrying a lateral flange at presence of two witnesses.

' the point of communication seated upon the SEYMOUR D. WATSON.

Wall-flange, connections between the flanges, Witnesses: a plurality of water-tubes extending from the MABEL WALBRIDGE,-

water-wall and having communication with H. E. WALBRIDGE. 

